William paulson and richard paulson



Patented May 11, 1880 mf /1,0640% @W/ @Lwm Lubricant-0r.

N- PETERS, PHOTO;UYHOGRAFH 15 out any impurities.

UNITED STATES PATENT OEETc LOUGHBOROUGH, ASSIGNORS TO WILLIAM PIGKERING,OF ARUNDEL STREET, STRAND, MIDDLESEX COUNTY, ENGLAND.

LUBRICATO R.

SPECIFICATION forming part of Letters Patent No. 227,570, dated May 11,1880.-

Application filed February 20, 1880. Patented in England Ifebruary 27,1878.

ed over the surface to be oiled and connected therewith by a hollow stemor tube containing a suitable conductor which regulates the flow of thelubricant, and also fil rs or strains The object of our invention is tofor fectly oil-tight joint between the reservoir its stem or tube, toprevent loss by breakage and to facilitate refilling and cleaning theres- 2o ervoir by a simple and inexpensive construction of parts.

The figure of the accompanying drawing is a sectional elevation of ourimproved lubricator.

I 5 A represents a glass reservoir of any convenient size or shape, andB its neck, integral therewith, and constructed with convex sidesinternally.

represents an annular plug of cork with- 0 in the neck B; D, theordinary metallic stem or tube which supports the reservoir and conveysthe oil to the surface which is to be lubricated; and E, a combinedconductor and filter, of a preferred form, composed of a num- 3 her ofstrands of galvanized wire twisted together, the same filling theinterior of the tube D throughout a given portion of its length. Any ofthe common filtering and flow-controlling fillings may be substitutedfor the con- 0' ductor and filter E, if desired.

The plug 0 is attached at its lower end to a rigid disk, X, and slidestherewith upon the tube D, to which it is tightly fitted. The upper endof the plug engages with a collar, y,

5 attached to the extreme upper end of the tube by upsetting or rivetingthe latter.

Care should be taken to make the plug of greater length and of a greaterdiameter at its lower end than the neck B will accommodate, and thecollar 3 should be flaring. as shown. Said plug O, in combination withthe neck B, forms acheap and very superior coupling between thereservoir A and the tube 1). Being elastic and a non-conductor of heat,it

is not affected by jarring nor by expansion and contraction, like ametallic coupling, and being compressed by the said convex internal\walls of the neck, it readily forms a perfectly oil-tight jointtherewith and with the tube within itself, the requisite force beingreadily applied to the plug through the medium of said rigid disk X,which also supports the plug beneath, and any tendency to displace mentoperates, through thetlaring lower end of the neck in one direction andthe flaring collar 3 in the other, to expand the plug and preserve itstightness.

In inserting the plug the neck cannot be subjected to strain which wouldcause fracture, and when it is removed to refill or clean the reservoirit leaves the same free from all attachments.

We do not claim as new aninverted glass reservoir having a detachabletube containing an oil conductor and filter; but

What We claim as new andof ourown invention, and desire to protect byLetters Patent of the United States, is

The improved lubricator consisting of the glass reservoir A, with itsneck B, having convex internal walls, the plug O, of elastic material,the tube D, with its filtering and flow-regulating filling E, and thedisk X and flaring collar y, as herein specified.

In witness whereof we have signed our names in the presence of twosubscribing witnesses.

WILLIAM PAULSON. RICHARD PAULSON.

Witnesses:

J 0s. BARBER HUxEY, Solicitor, Leicester, England.

S. S. PARTRIDGE,

Clerk to Mr. Hamby, Solicitor, Leicester.

